Bias, Where?

"Anywhere in the world that social psychologists see women or minorities
underrepresented by a factor of two or three, our minds jump to
discrimination as the explanation," said Dr. Haidt, who called himself a
longtime liberal turned centrist. "But when we find out that
conservatives are underrepresented among us by a factor of more than
100, suddenly everyone finds it quite easy to generate alternate
explanations.

Dr. Haidt (pronounced height) told the audience that he had been corresponding with a couple of non-liberal graduate students in social psychology whose experiences reminded him of closeted gay students in the 1980s.
He quoted -- anonymously -- from their e-mails describing how they hid
their feelings when colleagues made political small talk and jokes
predicated on the assumption that everyone was a liberal."